lady thief
A lady thief is a guy who swipes a girl from another guy, usually when the original guy is nowhere to be found. He’s got charm, a good sense of humor, and probably a six-pack. This usually happens when the guy she’s with is overseas, broke, or just not good in bed.
My neighbor took my brother’s girlfriend because she said he was ‘too boring’ and ‘smelled like old pizza.’
The guy at the gym stole my girlfriend because he thought I was too fat to notice.
My dad’s friend had a lady thief take him out while he was stuck in Germany for six months.